<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
         a{
            display: inline-block;
            width: 30px;
            height: 30px;
            position: relative;
        }
        .qq{
            display: inline-block;
            width: 25px;
            height: 25px;
            background: skyblue url("images/icons_type.png") no-repeat;
            background-position-x: -18px;
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%,-50%);
            border-radius: 50%;
        }
       
    </style>
</head>
<body>
   <a href="#">
       <span class="qq">
        
       </span>
   </a>
</body>
</html>